This positive electrode for nonaqueous electrolyte secondary batteries is provided with a positive electrode core body and a positive electrode mixture layer formed on the surface of the positive electrode core body. The positive electrode mixture layer contains a positive electrode active material mainly composed of a lithium transition metal composite oxide which contains 70% by mole or more of Ni relative to the total number of moles of the metal elements excluding Li. The positive electrode core body has a thermal conductivity X of from 50 to 155 W/m.Math.K (25° C.). The upper limit Y1 and the lower limit Y2 of the median value Y in the circularity distribution of the lithium transition metal composite oxide relative to the thermal conductivity X of the core body respectively satisfy the conditions of formula (1) and formula (2) described below. Formula (1): Y1=0.9322(X−0.987) Formula (2): Y2=0.1613(X−0.746)−0.0005.

Provided is a metal negative electrode that has an excellent repeat resistance and is excellent in charge and discharge cycle characteristics even in a high charge and discharge rate, a method for fabricating the same, and a secondary battery using the metal negative electrode. The metal negative electrode is a metal negative electrode used for a secondary battery, which includes an active material portion, a current collector, and a non-electronically conductive reaction space divider. The active material portion forms metal during charging and forms an oxidation product of the metal during discharging. The metal is used as a negative-electrode active material. The current collector is electrically connected to the active material portion. The non-electronically conductive reaction space divider is integrally formed with or connected to the current collector and/or the active material portion. The reaction space divider has a plurality of electrolyte holder portions configured to hold a liquid electrolyte.

Provided is a metal negative electrode that has an excellent repeat resistance and is excellent in charge and discharge cycle characteristics even in a high charge and discharge rate, a method for fabricating the same, and a secondary battery using the metal negative electrode. The metal negative electrode is a metal negative electrode used for a secondary battery, which includes an active material portion, a current collector, and a non-electronically conductive reaction space divider. The active material portion forms metal during charging and forms an oxidation product of the metal during discharging. The metal is used as a negative-electrode active material. The current collector is electrically connected to the active material portion. The non-electronically conductive reaction space divider is integrally formed with or connected to the current collector and/or the active material portion. The reaction space divider has a plurality of electrolyte holder portions configured to hold a liquid electrolyte.

A battery electrode composition is provided that comprises a composite material comprising one or more nanocomposites. The nanocomposites may each comprise a planar substrate backbone having a curved geometrical structure, and an active material forming a continuous or substantially continuous film at least partially encasing the substrate backbone. To form an electrode from the electrode composition, a plurality of electrically-interconnected nanocomposites of this type may be aggregated into one or more three-dimensional agglomerations, such as substantially spherical or ellipsoidal granules.

A battery electrode composition is provided that comprises a composite material comprising one or more nanocomposites. The nanocomposites may each comprise a planar substrate backbone having a curved geometrical structure, and an active material forming a continuous or substantially continuous film at least partially encasing the substrate backbone. To form an electrode from the electrode composition, a plurality of electrically-interconnected nanocomposites of this type may be aggregated into one or more three-dimensional agglomerations, such as substantially spherical or ellipsoidal granules.

Provided is a lithium secondary battery including: an aluminum anode configured to occlude and release lithium ions: a cathode configured to occlude and release lithium ions; and an electrolyte, in which the aluminum anode is formed of an aluminum-containing metal, the cathode has a cathode active material, and the cathode active material contains a metal oxide containing nickel.

Provided is a laminate for a lithium secondary battery including: a metal anode configured to occlude and release lithium ions; a cathode configured to occlude and release lithium ions; and an electrolyte, in which the metal anode is formed of an aluminum-containing metal, the metal anode has a plate shape, and a surface of flat surfaces of the metal anode facing the cathode has a ceramic separator or a solid electrolyte layer.

Provided is a laminate for a lithium secondary battery including: a metal anode configured to occlude and release lithium ions; a cathode configured to occlude and release lithium ions; and an electrolyte, in which the metal anode is formed of an aluminum-containing metal, the metal anode has a plate shape, and a surface of flat surfaces of the metal anode facing the cathode has a ceramic separator or a solid electrolyte layer.

Provided is a metal negative electrode used for a secondary battery. The metal negative electrode includes an active material portion, a current collector, and a non-electronically conductive reaction space divider. The active material portion forms metal during charging and forms an oxidation product of the metal during discharging. The metal is used as a negative-electrode active material. The current collector is electrically connected to the active material portion. The non-electronically conductive reaction space divider is integrally formed with or connected to the current collector and/or the active material portion. The reaction space divider has a plurality of electrolyte holder portions configured to hold a liquid electrolyte.

Provided is a metal negative electrode used for a secondary battery. The metal negative electrode includes an active material portion, a current collector, and a non-electronically conductive reaction space divider. The active material portion forms metal during charging and forms an oxidation product of the metal during discharging. The metal is used as a negative-electrode active material. The current collector is electrically connected to the active material portion. The non-electronically conductive reaction space divider is integrally formed with or connected to the current collector and/or the active material portion. The reaction space divider has a plurality of electrolyte holder portions configured to hold a liquid electrolyte.